Draft: Update Ironbank

This MR contains the following updates:

Package	Update	Change
ironbank/opensource/keycloak/keycloak	major	18.0.2-legacy -> 19.0.1-legacy
registry1.dso.mil/ironbank/bitnami/postgres-exporter	minor	0.10.1 -> 0.11.0
registry1.dso.mil/ironbank/opensource/keycloak/keycloak	major	18.0.2-legacy -> 19.0.1-legacy

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